* Allow route classes to be prioritized to adjust run order

* Add Roda/SSR integration testing — more to come!

* improve route testing

* fix cops

* leave the plugins folder in place

* fix: plugins & components folders can now be absent

* Add site `server_shutdown` hook via Puma

* Move routes prioritization to a concern, better documentation

* Add prioritiziation feature to Builders

* Add documentation for the later value